JPH09219950A - Frameless motor - Google Patents
Frameless motorInfo
- Publication number
- JPH09219950A JPH09219950A JP5224796A JP5224796A JPH09219950A JP H09219950 A JPH09219950 A JP H09219950A JP 5224796 A JP5224796 A JP 5224796A JP 5224796 A JP5224796 A JP 5224796A JP H09219950 A JPH09219950 A JP H09219950A
- Authority
- JP
- Japan
- Prior art keywords
- load
- stator core
- load side
- side bracket
- bracket
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
- Motor Or Generator Frames (AREA)
Abstract
(57)【要約】
【課題】 部品点数や作業工数の少ないフレームレスモ
ータを提供する。
【解決手段】 複数の薄板鋼板を積層して形成した円筒
状の固定子鉄心１と、固定子鉄心１の負荷側端面に固定
された負荷側ブラケット３と、固定子鉄心１の反負荷側
端面に固定された反負荷側ブラケット４と、固定子鉄心
１の内側に空隙を介して設けた回転子２と、負荷側ブラ
ケット３および前記反負荷側ブラケット４に支持され、
かつ回転子２に固定されたシャフト２１と、負荷側およ
び反負荷側ブラケット３、４を固定子鉄心１に固定する
ボルト５とを備えたフレームレスモータにおいて、負荷
側ブラケット３および反負荷側ブラケット４は、それぞ
れ脚部３１、４１が、ブラケット本体部分と一体成形さ
れ、脚部３１、４１に取り付け穴３２、４２を設けたも
のである。
(57) [Abstract] [PROBLEMS] To provide a frameless motor with a small number of parts and a small number of work steps. A cylindrical stator core 1 formed by laminating a plurality of thin steel plates, a load side bracket 3 fixed to a load side end face of the stator core 1, and an anti-load side end face of the stator core 1. Is supported by the anti-load side bracket 4 fixed to the rotor 2, the rotor 2 provided inside the stator core 1 with a gap, the load side bracket 3 and the anti-load side bracket 4.
A frameless motor including a shaft 21 fixed to the rotor 2 and a bolt 5 for fixing the load-side and anti-load-side brackets 3 and 4 to the stator core 1, the load-side bracket 3 and the anti-load-side bracket 4, the leg portions 31 and 41 are integrally formed with the bracket main body portion, and the leg portions 31 and 41 are provided with mounting holes 32 and 42, respectively.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、積層鉄心からなる
固定子鉄心を露出させたフレームレスモータに関し、と
くに脚部の構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a frameless motor in which a stator core made of laminated iron core is exposed, and more particularly to a structure of legs.
【０００２】[0002]
【従来の技術】従来、トランジスタインバータなどによ
って駆動される可変速モータでは、回転子が高速から低
速まで変化する範囲で、固定子を十分冷却する必要があ
るため、固定子鉄心の外周にフレームを取りつけること
なく、固定子鉄心が直接空気に接触するようにしたフレ
ームレスモータが利用されている。このようなモータを
機械設備等に取り付けるときに必要な脚部は、固定子鉄
心や固定子鉄心を両端から支持する端板に直接、溶接に
よって固定したものがあるが、溶接熱による歪みが固定
子鉄心に生じて、空隙の磁束密度に不均衡が出たり、磁
気音が発生したりする問題があった。このような問題を
解決するものとして、固定子鉄心の両端面に負荷側およ
び反負荷側の両方のブラケットを取り付け、固定子鉄心
を軸方向に貫通する通しボルトによって、両方のブラケ
ットを固定子鉄心に一体に固定し、両方のブラケットに
設けた軸受を介して、固定子鉄心の内側に設けられた回
転子のシャフトを支持するとともに、両方ブラケットと
は別に設けた脚部を、両方のブラケットに渡し、あるい
はそれぞれのブラケットに、ボルトによって固定したも
のが開示されている（例えば、特開平１−１０３１３３
号公報）。2. Description of the Related Art Conventionally, in a variable speed motor driven by a transistor inverter or the like, it is necessary to cool the stator sufficiently within a range in which the rotor changes from high speed to low speed. A frameless motor is used in which the stator core directly contacts the air without mounting. The legs required when mounting such a motor to machinery and equipment are fixed by welding directly to the stator core or end plates that support the stator core from both ends, but the distortion due to welding heat is fixed. There was a problem that the magnetic flux density in the air gap was imbalanced and magnetic noise was generated due to the child iron core. To solve such a problem, mount both brackets on the load side and the anti-load side on both end faces of the stator core, and attach both brackets to the stator core with through bolts that penetrate the stator core in the axial direction. The shaft of the rotor provided inside the stator core is supported via the bearings provided on both brackets, and the legs provided separately from both brackets are attached to both brackets. It is disclosed that the bridges or the respective brackets are fixed by bolts (for example, Japanese Patent Laid-Open No. 1-103133).
Issue).
【０００３】[0003]
【発明が解決しようとする課題】ところが、上記前者の
従来技術では、ブラケットと別に脚部をボルトによって
固定しているため、部品点数や作業工数が多くなるとい
う問題があった。本発明は、部品点数や作業工数の少な
いフレームレスモータを提供することを目的とするもの
である。However, in the former prior art described above, since the legs are fixed by bolts separately from the bracket, there is a problem that the number of parts and the number of working steps are increased. An object of the present invention is to provide a frameless motor having a small number of parts and a small number of work steps.
【０００４】[0004]
【課題を解決するための手段】上記課題を解決するた
め、本発明は、複数の薄板鋼板を積層して形成した円筒
状の固定子鉄心と、前記固定子鉄心の負荷側端面に固定
された負荷側ブラケットと、前記固定子鉄心の反負荷側
端面に固定された反負荷側ブラケットと、前記固定子鉄
心の内側に空隙を介して設けた回転子と、前記負荷側ブ
ラケットおよび前記反負荷側ブラケットに支持され、か
つ前記回転子に固定されたシャフトと、前記負荷側およ
び反負荷側ブラケットを前記固定子鉄心に固定するボル
トとを備えたフレームレスモータにおいて、前記負荷側
ブラケットおよび前記反負荷側ブラケットは、それぞれ
脚部が、ブラケット本体部分と一体成形され、前記脚部
に取り付け穴を設けたものである。In order to solve the above-mentioned problems, according to the present invention, a cylindrical stator core formed by laminating a plurality of thin steel plates and a load side end face of the stator core are fixed. A load side bracket, an anti-load side bracket fixed to the end face of the stator core opposite to the load side, a rotor provided inside the stator core with a gap, the load side bracket and the counter load side In a frameless motor including a shaft supported by a bracket and fixed to the rotor, and a bolt that fixes the load-side and anti-load-side brackets to the stator core, the load-side bracket and the anti-load Each of the side brackets has a leg portion integrally formed with the bracket body portion, and a mounting hole is provided in the leg portion.
【０００５】[0005]
【発明の実施の形態】以下、本発明を図に示す実施例に
ついて説明する。図１は本発明の実施例を示す側面図、
図２は正面図である。図において、１は複数の薄板鋼板
を積層して形成した円筒状の固定子鉄心で、電機子コイ
ル１１が装着されている。２は固定子鉄心１の内側に空
隙を介して設けた回転子で、シャフト２１が固定されて
いる。３は負荷側ブラケット、４は反負荷側ブラケット
で、固定子鉄心１の負荷側および反負荷側の両端面にそ
れぞれボルト５によって固定され、軸受６を介してシャ
フト２１を回転自在に支持している。負荷側ブラケット
３および反負荷側ブラケット４には、それぞれ脚部３
１、４１が、ブラケット本体部分と鋳造、焼結合金、強
化プラスチックなどにより一体成形され、脚部３１、４
１には取り付け穴３２、４２が設けられている。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to embodiments shown in the drawings. FIG. 1 is a side view showing an embodiment of the present invention,
FIG. 2 is a front view. In the figure, reference numeral 1 denotes a cylindrical stator core formed by laminating a plurality of thin steel plates, on which an armature coil 11 is mounted. Reference numeral 2 denotes a rotor provided inside the stator core 1 with a gap, to which a shaft 21 is fixed. Reference numeral 3 denotes a load side bracket, and 4 denotes an anti-load side bracket, which are fixed to the load core side and the counter load side both ends of the stator core 1 by bolts 5, respectively, and rotatably support the shaft 21 via bearings 6. There is. The load side bracket 3 and the anti-load side bracket 4 are respectively provided with leg portions 3
1, 41 are integrally formed with the bracket main body by casting, sintered alloy, reinforced plastic, etc.
1 is provided with mounting holes 32 and 42.
【０００６】このような構成により、固定子鉄心１に負
荷側ブラケット３および反負荷側ブラケット４をボルト
５によって固定するだけで、別に脚部を取り付けること
となく、機械設備にモータを設置することができる。な
お、固定子鉄心１の積み厚を変えて、異なる機種のモー
タにする場合に、脚取り付け穴の基準寸法も変わること
があるので、反負荷側ブラケット４に設けた取り付け穴
４２を長穴に形成しておけば、異なる機種に対応でき
る。また、前記ボルト５は、固定子鉄心１の内側または
外側を軸方向に通され、負荷側ブラケット３および反負
荷側ブラケット４を固定子鉄心１の両端面に固定するよ
うにした通しボルトでもよい。With such a structure, the load side bracket 3 and the anti-load side bracket 4 are simply fixed to the stator core 1 by the bolts 5, and the motor is installed in the mechanical equipment without separately mounting the leg portions. You can When the stacking thickness of the stator core 1 is changed to make a motor of a different model, the reference dimensions of the leg mounting holes may also change. Therefore, the mounting holes 42 provided on the anti-load side bracket 4 are made into elongated holes. If formed, it can support different models. Further, the bolt 5 may be a through bolt that is axially passed through the inside or outside of the stator core 1 and fixes the load side bracket 3 and the anti-load side bracket 4 to both end faces of the stator core 1. .
【０００７】[0007]
【発明の効果】以上述べたように、本発明によれば、モ
ータの脚部を負荷側および反負荷側ブラケットに一体に
形成してあるので、部品点数や製作工数が少いフレーム
レスモータを提供できる効果がある。As described above, according to the present invention, since the leg portions of the motor are integrally formed with the load side and anti-load side brackets, a frameless motor having a small number of parts and a small number of manufacturing steps can be obtained. There is an effect that can be provided.
【図１】 本発明の実施例を示す側面図である。FIG. 1 is a side view showing an embodiment of the present invention.
【図２】 本発明の実施例を示す正面図である。FIG. 2 is a front view showing an embodiment of the present invention.
１：固定子鉄心、１１：電機子コイル、２：回転子、２
１：シャフト、３：負荷側ブラケット、３１：脚部、３
２：取り付け穴、４：反負荷側ブラケット、４１：脚
部、４２：取り付け穴、５：ボルト、６：軸受1: stator core, 11: armature coil, 2: rotor, 2
1: Shaft, 3: Load side bracket, 31: Leg part, 3
2: mounting hole, 4: anti-load side bracket, 41: leg, 42: mounting hole, 5: bolt, 6: bearing
Claims (1)
状の固定子鉄心と、前記固定子鉄心の負荷側端面に固定
された負荷側ブラケットと、前記固定子鉄心の反負荷側
端面に固定された反負荷側ブラケットと、前記固定子鉄
心の内側に空隙を介して設けた回転子と、前記負荷側ブ
ラケットおよび前記反負荷側ブラケットに支持され、か
つ前記回転子に固定されたシャフトと、前記負荷側およ
び反負荷側ブラケットを前記固定子鉄心に固定するボル
トとを備えたフレームレスモータにおいて、前記負荷側
ブラケットおよび前記反負荷側ブラケットは、それぞれ
脚部が、ブラケット本体部分と一体成形され、前記脚部
に取り付け穴を設けたことを特徴とするフレームレスモ
ータ。1. A cylindrical stator core formed by laminating a plurality of thin steel plates, a load side bracket fixed to a load side end face of the stator core, and an anti-load side end face of the stator core. A fixed anti-load side bracket, a rotor provided inside the stator core through a gap, a shaft supported by the load side bracket and the anti-load side bracket, and fixed to the rotor. A frameless motor having bolts for fixing the load-side and anti-load-side brackets to the stator core, the load-side bracket and the anti-load-side bracket each have a leg portion integrally formed with a bracket body portion. The frameless motor is characterized in that a mounting hole is provided in the leg portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05224796A JP3719281B2 (en) | 1996-02-14 | 1996-02-14 | Frameless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05224796A JP3719281B2 (en) | 1996-02-14 | 1996-02-14 | Frameless motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09219950A true JPH09219950A (en) | 1997-08-19 |
| JP3719281B2 JP3719281B2 (en) | 2005-11-24 |
Family
ID=12909408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05224796A Expired - Fee Related JP3719281B2 (en) | 1996-02-14 | 1996-02-14 | Frameless motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3719281B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100365031B1 (en) * | 1999-08-13 | 2002-12-16 | 삼성광주전자 주식회사 | The housing of motor |
| CN100394674C (en) * | 2004-08-23 | 2008-06-11 | 株式会社安川电机 | Rotary motor |
| WO2008102860A1 (en) | 2007-02-23 | 2008-08-28 | Jtekt Corporation | Motor, and electric pump |
| WO2018168058A1 (en) * | 2017-03-14 | 2018-09-20 | 株式会社日立製作所 | Axial gap dynamo-electric machine |
| WO2019031120A1 (en) * | 2017-08-10 | 2019-02-14 | 株式会社デンソー | Electric motor |
| CN111211632A (en) * | 2020-01-16 | 2020-05-29 | 中国科学院长春光学精密机械与物理研究所 | Frameless motor fixing structure |
-
1996
- 1996-02-14 JP JP05224796A patent/JP3719281B2/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100365031B1 (en) * | 1999-08-13 | 2002-12-16 | 삼성광주전자 주식회사 | The housing of motor |
| CN100394674C (en) * | 2004-08-23 | 2008-06-11 | 株式会社安川电机 | Rotary motor |
| WO2008102860A1 (en) | 2007-02-23 | 2008-08-28 | Jtekt Corporation | Motor, and electric pump |
| US8310125B2 (en) | 2007-02-23 | 2012-11-13 | Jtekt Corporation | Motor and electric pump having a stator including a first sintered metal and second sintered metal |
| WO2018168058A1 (en) * | 2017-03-14 | 2018-09-20 | 株式会社日立製作所 | Axial gap dynamo-electric machine |
| JPWO2018168058A1 (en) * | 2017-03-14 | 2019-08-08 | 株式会社日立製作所 | Axial gap type rotating electrical machine |
| US11205935B2 (en) | 2017-03-14 | 2021-12-21 | Hitachi, Ltd. | Axial gap dynamo-electric machine |
| WO2019031120A1 (en) * | 2017-08-10 | 2019-02-14 | 株式会社デンソー | Electric motor |
| JP2019037036A (en) * | 2017-08-10 | 2019-03-07 | 株式会社デンソー | Electric motor |
| CN111211632A (en) * | 2020-01-16 | 2020-05-29 | 中国科学院长春光学精密机械与物理研究所 | Frameless motor fixing structure |
| CN111211632B (en) * | 2020-01-16 | 2021-01-15 | 中国科学院长春光学精密机械与物理研究所 | Frameless motor fixing structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3719281B2 (en) | 2005-11-24 |
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